The Ready for Warren super PAC may want Massachusetts Sen. Elizabeth Warren to run for president, but the Democrat insists she is not seeking the White House and she does not want the PAC to raise money on hopes that she is.

"Senator Warren has publicly announced that she is not running for president in 2016," her attorney, Marc Elias, wrote in a letter to the Federal Election Commission, reports CNN. "The senator has not, and does not, explicitly or implicitly, authorize, endorse, or otherwise approve of the organization's formation or activities."

And instead of raising money for her, she'd rather that the Ready For Warren super PAC concentrate its attention on "maintaining Democratic control of the U.S. Senate and not confuse donors about a non-existent run for president."

But despite Warren's disavowal of the super PAC, Erica Sagrans, its manager, said the senator's supporters aren't backing down.

"I don't think there's anything new in this letter, and we're continuing with our campaign to draft Elizabeth Warren to run for president in 2016 because we believe she's the best person for the job," Sagrans said in a statement. "We've all been clear since we launched our campaign that Senator Warren isn't associated with our group, and we aren't associated with the senator."

She did agree with Warren about focusing the group's energies on maintaining the Democrats' control of the Senate.

The super PAC's name is based off the name of another super PAC, Ready for Hillary, which is organizing for former Secretary of State Hillary Clinton's potential presidential campaign. Unlike Warren, however, Clinton has not disavowed her namesake super PAC.

And while Clinton hasn't officially announced her candidacy, she often hints at an upcoming campaign, unlike Warren, who repeatedly tells the media she is not running for president.

Ready for Hillary PAC reports it has collected donations from more than 90,000 supporters since the organization started in January 2013.